The fetal electrocardiogram: Relationship with acidemia at delivery

This study was undertaken to analyze the relationship between the fetal electrocardiogram and arterial pH and base excess at delivery. In the labor wards of three teaching hospitals a retrospective observational study was conducted on fetal monitor recordings of 679 women for whom there was an indic...

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Bibliographic Details
Published in:American journal of obstetrics and gynecology 2000-03, Vol.182 (3), p.603-606
Main Authors: Strachan, Bryony, Sahota, Daljit, Van Wijngaarden, Willem J., James, David R., Chang, Allan Z.M.
Format: Article
Language:English
Subjects:
Acidemia
Acidosis - blood
Biological and medical sciences
Delivery, Obstetric
Diseases of mother, fetus and pregnancy
Electrocardiography
Female
Fetal Blood
Fetal Diseases - blood
fetal electrocardiography
Gynecology. Andrology. Obstetrics
Humans
Hydrogen-Ion Concentration
Infant, Newborn
intrapartum surveillance
Medical sciences
Pregnancy
Pregnancy. Fetus. Placenta
Prenatal Diagnosis
ROC Curve
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Summary:This study was undertaken to analyze the relationship between the fetal electrocardiogram and arterial pH and base excess at delivery. In the labor wards of three teaching hospitals a retrospective observational study was conducted on fetal monitor recordings of 679 women for whom there was an indication for continuous fetal monitoring during labor. These women had been recruited as part of either observational studies or a prospective randomized trial related to the Nottingham fetal electrocardiographic project. Fetal heart and uterine contraction data were obtained with the Nottingham fetal electrocardiographic analyzer. Morphologic and time interval analyses of the fetal electrocardiogram were performed. Evaluation was carried out for the last half hour before delivery. Main outcome measures were umbilical arterial pH and base excess at delivery. The study demonstrated a relationship between time interval analysis of the fetal electrocardiogram and a low umbilical arterial pH and base excess at delivery. Analysis of the morphologic characteristics of the fetal electrocardiogram (ST segment and T -wave height) showed no significant relationship. Time interval analysis of the fetal electrocardiogram during labor is related to relative acidemia at delivery.
ISSN:0002-9378
1097-6868
DOI:10.1067/mob.2000.104146